The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2017
Filed:
Nov. 19, 2013
Applicant:
United Microelectronics Corp., Hsinchu, TW;
Inventor:
Tse-Yi Lu, Chiayi, TW;
Assignee:
UNITED MICROELECTRONICS CORP., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 1/42 (2006.01); G01J 1/02 (2006.01); G01J 1/04 (2006.01); H01L 27/30 (2006.01);
U.S. Cl.
CPC ...
G01J 1/4204 (2013.01); G01J 1/0209 (2013.01); G01J 1/0492 (2013.01); H01L 27/305 (2013.01);
Abstract
A light detecting device is provided, comprising a substrate having a patterned metal layer formed thereon; a dielectric layer formed on the substrate, first pixel element formed on the dielectric layer, and a second pixel element. The dielectric layer at least has a first trench, and the first trench is positioned below the level of the first pixel element. The second pixel element comprises a buried portion formed correspondingly to the first trench, and an upper portion formed on the buried portion. The upper portion of the second pixel element is positioned at the same level of the first pixel element.